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發(fā)布時(shí)間: 2019-7-17 10:55
正文摘要:內(nèi)通徑是指節(jié)流器內(nèi)部最小的直徑嗎?那樣的話就是指氣嘴內(nèi)徑了啊,可氣嘴內(nèi)徑好像沒有那么大啊 |
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